The Dark Universe is an accompaniment to Sonic Acts XV. The book features essays by Andrew Pickering, Michael Doser, Roger Malina, Keller Easterling, Simon Ings and many others, that discuss the festival theme from various perspectives. Extensive interviews with Saskia Sassen, Lebbeus Woods and artists like CM von Hausswolff, HC Gilje, Matthijs Munnik and Gert-Jan Prins approach ‘the dark universe’ from yet other perspectives. Interspersed through the book are not only many illustrations, but also visual essays by Bitcaves. The book is edited by Arie Altena & Sonic Acts.